Of course your body knows how to go into labor! It just might be slow to warm up
I totally hear you on the fear and frustration, though. I felt that way with my first pregnancy because I had so many convincing prodromal episodes. On the day that I finally did go into labor (at 40w3d), I cried and cried because I was convinced it was another false alarm. In fact, your anxiety right now makes me think that something could be happening for you .... hmmm... ??
Remember that induction is rampant these days, often before people even reach 40 weeks, and it's often doctors who are pushing it so that they can have some control over their own schedules, so don't be surprised when you hear others talking about how their bodies are failing them -- that's what they're being told.
I can totally understand taking measures to move things along when you get to 41 or 42 weeks (though some mamas on MDC routinely go to 43 weeks or so before labor naturally kicks in), but it sounds like you're only, what, 38 or 39 weeks? Don't give up just yet!
Again, I know how frustrating it is to feel like things are happening and then to not have them happen, but some of us are just slow starters. Can you give yourself a late deadline? Like maybe 41 weeks before you start really looking for a way out, so long as the baby seems ok?
. I hope it happens for you soon.